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Question

Which of the following is/are correct for 17g/L of H2O2 solution?

A
Volume strengths is 5.6 at 273K and 1 atm.
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B
Molarity of solution is 0.5 M.
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C
1 mL of this solution gives 2.8 mL O2 at 273 K and 2 atm.
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D
The normality of solution is 2N.
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Solution

The correct options are
A Volume strengths is 5.6 at 273K and 1 atm.
B Molarity of solution is 0.5 M.
C 1 mL of this solution gives 2.8 mL O2 at 273 K and 2 atm.
17 g/L H2O2=1734mol L1H2O2

Molarity of H2O2=12=0.5M

M=V11.2V=12×11.2=5.6

5.6 volume H2O2 means 1 mL will give 5.6 mL at 273 K and 1 atm

P1V1=P2V2

1×5.6=2×V2

V2=2.8 mL

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